# setMapLayerVisible

Immediately mask a layer without restarting active animations, rescaling or reframing. Unknown keys return null.

Canonical: https://chart.syidax.com/ko/docs/methods/setMapLayerVisible/

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## 정의

```typescript
setMapLayerVisible(layer: GeoMapLayer, visible: boolean): Promise<GeoMapLayerDetail|null>
```

| 인수 | 타입 | 필수 여부 |
| --- | --- | --- |
| `layer` | `GeoMapLayer` | 필수 |
| `visible` | `boolean` | 필수 |

반환 타입: `Promise<GeoMapLayerDetail|null>`. 요소 등록이 끝난 뒤 메서드를 호출하고 Promise 결과를 await로 기다리세요.

- [GeoMapLayerDetail](https://chart.syidax.com/ko/docs/types/GeoMapLayerDetail.md) — 타입 정의
- [GeoMapLayer](https://chart.syidax.com/ko/docs/types/GeoMapLayer.md) — 타입 정의

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## 관련 차트

- [sy-geo-map](https://chart.syidax.com/ko/docs/components/geo-map.md#method-setMapLayerVisible)
- [sy-flow-lines](https://chart.syidax.com/ko/docs/components/flow-lines.md#method-setMapLayerVisible)